The server auto-detects WRAM size and RAMDAC speed. Do not bother putting these in your "Device" section, as they will be overridden. The TVP3026 and MGA1064SG have a programmable clock generator, so probing and setting clocks is unnecessary as well.
The "nolinear" option is currently unsupported - do not use this
The options "noaccel" or "no_bitblt" turn off BitBlt Engine and other accelerated functions.